noop

post

https://api.hyperliquid.xyzhttps://api.hyperliquid-testnet.xyz

/exchange

This action does not do anything (no operation), but causes the nonce to be marked as used.

Body

application/json

This action does not do anything (no operation), but causes the nonce to be marked as used.

nonceintegerRequired

Nonce (timestamp in ms) used to prevent replay attacks.

expiresAfterintegerOptional

Expiration time of the action.

Responses

200

Successful response without specific data or error response.

application/json

Responseany of

Successful response without specific data or error response.

or

422

Failed to deserialize the JSON body into the target type

text/plain

post

/exchange

HTTPcURLJavaScriptPython

POST /exchange HTTP/1.1
Host: api.hyperliquid.xyz
Content-Type: application/json
Accept: */*
Content-Length: 96

{
  "action": {
    "type": "noop"
  },
  "nonce": 1,
  "signature": {
    "r": "text",
    "s": "text",
    "v": 27
  },
  "expiresAfter": 1
}

{
  "status": "ok",
  "response": {
    "type": "default"
  }
}